Escoffier, the Peerless Edge (Patreon)

Weapon (dagger), legendary (requires attunement)

This pristine 240 mm chef's knife of celestial make grants its wielder the ability of a master chef. While you are attuned to this item, it gains the following features:

Grand Chef. You have advantage on any ability checks that involve food preparation including but not limited to carving creatures, memorizing a complicated recipe, making a dish more presentable, etc. Food preparation takes half as long while you are attuned to this knife.

Refined Blade. This knife can only carve through non-magical, inanimate materials. Regardless of the material's properties, the knife glides through with little resistance.

Bestowed to mortals by celestial connoisseurs of the culinary arts, this exquisite cutting tool is sought after by chefs throughout the realms. To maximize the versatility and variety of recipes that could be cooked by its user, this knife is enchanted with a blade that can cut through any substance. Fearing the safety of those who would wield such a tool, the celestial creators made certain the blade could not harm any being, ensuring that it couldn’t possibly be used for anything other than its intended purpose.